LPV identification of a turbocharged diesel engine

Authors:
J. V. Salcedo;M. Martínez
Affiliations:
Department of Systems Engineering and Control, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain;Department of Systems Engineering and Control, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain
Venue:
Applied Numerical Mathematics
Year:
2008

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Abstract

This work proposes a methodology of identifying linear parameter varying (LPV) models for nonlinear systems. First, linear local models in some operating points, by applying standard identifications procedures for linear systems in time domain, are obtained. Next, a LPV model with linear fractional dependence (LFR) with respect to measured variables is fitted with the condition of containing all the linear models identified in previous step (differential inclusion). The fit is carried out using nonlinear least squares algorithms. Finally, this identification methodology will then be applied to a nonlinear turbocharged diesel engine.